Standard for transmission of a ue

ABSTRACT

One disclosure of the present specification provides a method for performing communication by a user equipment (UE). The method comprises the steps of: determining transmission power; transmitting uplink signal via n263 frequency band, based on the transmission power, wherein the UE is power class 3 UE, wherein the transmission power is determined based on i) minimum peak EIRP (Effective Isotropic Radiated Power) of the UE and ii) EIRP related to spherical coverage.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims the benefit of U.S. Provisional App. Nos.63/297,810, filed on Jan. 10, 2022, the contents of which are all herebyincorporated by reference herein in their entirety.

TECHNICAL FIELD

The present specification relates to mobile communications.

BACKGROUND

3rd generation partnership project (3GPP) long-term evolution (LTE) is atechnology for enabling high-speed packet communications. Many schemeshave been proposed for the LTE objective including those that aim toreduce user and provider costs, improve service quality, and expand andimprove coverage and system capacity. The 3GPP LTE requires reduced costper bit, increased service availability, flexible use of a frequencyband, a simple structure, an open interface, and adequate powerconsumption of a terminal as an upper-level requirement.

Work has started in international telecommunication union (ITU) and 3GPPto develop requirements and specifications for new radio (NR) systems.3GPP has to identify and develop the technology components needed forsuccessfully standardizing the new RAT timely satisfying both the urgentmarket needs, and the more long-term requirements set forth by the ITUradio communication sector (ITU-R) international mobiletelecommunications (IMT)-2020 process. Further, the NR should be able touse any spectrum band ranging at least up to 100 GHz that may be madeavailable for wireless communications even in a more distant future.

The NR targets a single technical framework addressing all usagescenarios, requirements and deployment scenarios including enhancedmobile broadband (eMBB), massive machine-type-communications (mMTC),ultra-reliable and low latency communications (URLLC), etc. The NR shallbe inherently forward compatible.

Among the FR2 (Frequency Range 2: 24250 MHz~71000 MHz, FR2-1: 24250MHz~52600 MHz, FR2-2: 52600 MHz~71000 MHz) band, the introduction of ahandheld UE supporting the FR2-2 band is being discussed in the SPEC.Compared to a UE of the FR2-1 band, the number of array antennas usedand the characteristics of the RF element are different, so RFperformance standard of the UE should be defined in consideration ofthis.

RF performance standards for handheld UE supporting FR2-2 band should bedefined.

SUMMARY

RF performance standard for handheld UE supporting FR2-2 band isproposed.

The present specification may have various effects.

For example, by proposing a standard specification for a handheld UEsupporting the n263 band, communication between the network and the UEcan be guaranteed and commercialized.

Effects that can be obtained through specific examples of the presentspecification are not limited to the effects listed above. For example,various technical effects that a person having ordinary skill in therelated art can understand or derive from the present specification mayexist. Accordingly, the specific effects of the present specificationare not limited to those explicitly described herein, and may includevarious effects that can be understood or derived from the technicalcharacteristics of the present specification.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 shows an example of a communication system to whichimplementations of the present disclosure is applied.

FIG. 2 shows an example of wireless devices to which implementations ofthe present disclosure is applied.

FIG. 3 shows an example of a wireless device to which implementations ofthe present disclosure is applied.

FIG. 4 shows an example of UE to which implementations of the presentdisclosure is applied.

FIG. 5 is a wireless communication system.

FIG. 6 shows an array antenna module type in FR2-2.

FIG. 7 shows an array antenna module of 1×8 in FR2-2.

FIG. 8 shows spherical coverage of 1 panel and 2 panels for handheld UEwith 8 antenna elements in FR2-2.

FIG. 9 shows Spherical Coverage of 2 panel based on full sphere forhandheld UE with 16 antenna elements in FR2-2.

FIG. 10 illustrates a procedure of a UE according to the disclosure ofthe present specification.

DETAILED DESCRIPTION

The following techniques, apparatuses, and systems may be applied to avariety of wireless multiple access systems. Examples of the multipleaccess systems include a code division multiple access (CDMA) system, afrequency division multiple access (FDMA) system, a time divisionmultiple access (TDMA) system, an orthogonal frequency division multipleaccess (OFDMA) system, a single carrier frequency division multipleaccess (SC-FDMA) system, and a multicarrier frequency division multipleaccess (MC-FDMA) system. CDMA may be embodied through radio technologysuch as universal terrestrial radio access (UTRA) or CDMA2000. TDMA maybe embodied through radio technology such as global system for mobilecommunications (GSM), general packet radio service (GPRS), or enhanceddata rates for GSM evolution (EDGE). OFDMA may be embodied through radiotechnology such as institute of electrical and electronics engineers(IEEE) 802.11 (Wi-Fi), IEEE 802.16 (WiMAX), IEEE 802.20, or evolved UTRA(E-UTRA). UTRA is a part of a universal mobile telecommunications system(UMTS). 3rd generation partnership project (3GPP) long term evolution(LTE) is a part of evolved UMTS (E-UMTS) using E-UTRA. 3GPP LTE employsOFDMA in DL and SC-FDMA in UL. Evolution of 3GPP LTE includes LTE-A(advanced), LTE-A Pro, and/or 5G NR (new radio).

For convenience of description, implementations of the presentdisclosure are mainly described in regards to a 3GPP based wirelesscommunication system. However, the technical features of the presentdisclosure are not limited thereto. For example, although the followingdetailed description is given based on a mobile communication systemcorresponding to a 3GPP based wireless communication system, aspects ofthe present disclosure that are not limited to 3GPP based wirelesscommunication system are applicable to other mobile communicationsystems.

For terms and technologies which are not specifically described amongthe terms of and technologies employed in the present disclosure, thewireless communication standard documents published before the presentdisclosure may be referenced.

In the present disclosure, “A or B” may mean “only A”, “only B”, or“both A and B”. In other words, “A or B” in the present disclosure maybe interpreted as “A and/or B”. For example, “A, B or C” in the presentdisclosure may mean “only A”, “only B”, “only C”, or “any combination ofA, B and C”.

In the present disclosure, slash (/) or comma (,) may mean “and/or”. Forexample, “A/B” may mean “A and/or B”. Accordingly, “A/B” may mean “onlyA”, “only B”, or “both A and B”. For example, “A, B, C” may mean “A, Bor C”.

In the present disclosure, “at least one of A and B” may mean “only A”,“only B” or “both A and B”. In addition, the expression “at least one ofA or B” or “at least one of A and/or B” in the present disclosure may beinterpreted as same as “at least one of A and B”.

In addition, in the present disclosure, “at least one of A, B and C” maymean “only A”, “only B”, “only C”, or “any combination of A, B and C”.In addition, “at least one of A, B or C” or “at least one of A, B and/orC” may mean “at least one of A, B and C”.

Also, parentheses used in the present disclosure may mean “for example”.In detail, when it is shown as “control information (PDCCH)”, “PDCCH”may be proposed as an example of “control information”. In other words,“control information” in the present disclosure is not limited to“PDCCH”, and “PDCCH” may be proposed as an example of “controlinformation”. In addition, even when shown as “control information(i.e., PDCCH)”, “PDCCH” may be proposed as an example of “controlinformation”.

Technical features that are separately described in one drawing in thepresent disclosure may be implemented separately or simultaneously.

Although not limited thereto, various descriptions, functions,procedures, suggestions, methods and/or operational flowcharts of thepresent disclosure disclosed herein can be applied to various fieldsrequiring wireless communication and/or connection (e.g., 5G) betweendevices.

Hereinafter, the present disclosure will be described in more detailwith reference to drawings. The same reference numerals in the followingdrawings and/or descriptions may refer to the same and/or correspondinghardware blocks, software blocks, and/or functional blocks unlessotherwise indicated.

FIG. 1 shows an example of a communication system to whichimplementations of the present disclosure is applied.

The 5G usage scenarios shown in FIG. 1 are only exemplary, and thetechnical features of the present disclosure can be applied to other 5Gusage scenarios which are not shown in FIG. 1 .

Three main requirement categories for 5G include (1) a category ofenhanced mobile broadband (eMBB), (2) a category of massive machine typecommunication (mMTC), and (3) a category of ultra-reliable and lowlatency communications (URLLC).

Referring to FIG. 1 , the communication system 1 includes wirelessdevices 100 a to 100 f, base stations (BSs) 200, and a network 300.Although FIG. 1 illustrates a 5G network as an example of the network ofthe communication system 1, the implementations of the presentdisclosure are not limited to the 5G system, and can be applied to thefuture communication system beyond the 5G system.

The BSs 200 and the network 300 may be implemented as wireless devicesand a specific wireless device may operate as a BS/network node withrespect to other wireless devices.

The wireless devices 100 a to 100 f represent devices performingcommunication using radio access technology (RAT) (e.g., 5G new RAT(NR)) or LTE) and may be referred to as communication/radio/5G devices.The wireless devices 100 a to 100 f may include, without being limitedto, a robot 100 a, vehicles 100 b-1 and 100 b-2, an extended reality(XR) device 100 c, a hand-held device 100 d, a home appliance 100 e, anIoT device 100 f, and an artificial intelligence (AI) device/server 400.For example, the vehicles may include a vehicle having a wirelesscommunication function, an autonomous driving vehicle, and a vehiclecapable of performing communication between vehicles. The vehicles mayinclude an unmanned aerial vehicle (UAV) (e.g., a drone). The XR devicemay include an AR/VR/Mixed Reality (MR) device and may be implemented inthe form of a head-mounted device (HMD), a head-up display (HUD) mountedin a vehicle, a television, a smartphone, a computer, a wearable device,a home appliance device, a digital signage, a vehicle, a robot, etc. Thehand-held device may include a smartphone, a smartpad, a wearable device(e.g., a smartwatch or a smartglasses), and a computer (e.g., anotebook). The home appliance may include a TV, a refrigerator, and awashing machine. The IoT device may include a sensor and a smartmeter.

In the present disclosure, the wireless devices 100 a to 100 f may becalled user equipments (UEs). A UE may include, for example, a cellularphone, a smartphone, a laptop computer, a digital broadcast terminal, apersonal digital assistant (PDA), a portable multimedia player (PMP), anavigation system, a slate personal computer (PC), a tablet PC, anultrabook, a vehicle, a vehicle having an autonomous traveling function,a connected car, an UAV, an AI module, a robot, an AR device, a VRdevice, an MR device, a hologram device, a public safety device, an MTCdevice, an IoT device, a medical device, a FinTech device (or afinancial device), a security device, a weather/environment device, adevice related to a 5G service, or a device related to a fourthindustrial revolution field.

The UAV may be, for example, an aircraft aviated by a wireless controlsignal without a human being onboard.

The VR device may include, for example, a device for implementing anobject or a background of the virtual world. The AR device may include,for example, a device implemented by connecting an object or abackground of the virtual world to an object or a background of the realworld. The MR device may include, for example, a device implemented bymerging an object or a background of the virtual world into an object ora background of the real world. The hologram device may include, forexample, a device for implementing a stereoscopic image of 360 degreesby recording and reproducing stereoscopic information, using aninterference phenomenon of light generated when two laser lights calledholography meet.

The public safety device may include, for example, an image relay deviceor an image device that is wearable on the body of a user.

The MTC device and the IoT device may be, for example, devices that donot require direct human intervention or manipulation. For example, theMTC device and the IoT device may include smartmeters, vending machines,thermometers, smartbulbs, door locks, or various sensors.

The medical device may be, for example, a device used for the purpose ofdiagnosing, treating, relieving, curing, or preventing disease. Forexample, the medical device may be a device used for the purpose ofdiagnosing, treating, relieving, or correcting injury or impairment. Forexample, the medical device may be a device used for the purpose ofinspecting, replacing, or modifying a structure or a function. Forexample, the medical device may be a device used for the purpose ofadjusting pregnancy. For example, the medical device may include adevice for treatment, a device for operation, a device for (in vitro)diagnosis, a hearing aid, or a device for procedure.

The security device may be, for example, a device installed to prevent adanger that may arise and to maintain safety. For example, the securitydevice may be a camera, a closed-circuit TV (CCTV), a recorder, or ablack box.

The FinTech device may be, for example, a device capable of providing afinancial service such as mobile payment. For example, the FinTechdevice may include a payment device or a point of sales (POS) system.

The weather/environment device may include, for example, a device formonitoring or predicting a weather/environment.

The wireless devices 100 a to 100 f may be connected to the network 300via the BSs 200. An AI technology may be applied to the wireless devices100 a to 100 f and the wireless devices 100 a to 100 f may be connectedto the AI server 400 via the network 300. The network 300 may beconfigured using a 3G network, a 4G (e.g., LTE) network, a 5G (e.g., NR)network, and a beyond-5G network. Although the wireless devices 100 a to100 f may communicate with each other through the BSs 200/network 300,the wireless devices 100 a to 100 f may perform direct communication(e.g., sidelink communication) with each other without passing throughthe BSs 200/network 300. For example, the vehicles 100 b-1 and 100 b-2may perform direct communication (e.g., vehicle-to-vehicle(V2V)/vehicle-to-everything (V2X) communication). The IoT device (e.g.,a sensor) may perform direct communication with other IoT devices (e.g.,sensors) or other wireless devices 100 a to 100 f.

Wireless communication/connections 150 a, 150 b and 150 c may beestablished between the wireless devices 100 a to 100 f and/or betweenwireless device 100 a to 100 f and BS 200 and/or between BSs 200.Herein, the wireless communication/connections may be establishedthrough various RATs (e.g., 5G NR) such as uplink/downlink communication150 a, sidelink communication (or device-to-device (D2D) communication)150 b, inter-base station communication 150 c (e.g., relay, integratedaccess and backhaul (IAB)), etc. The wireless devices 100 a to 100 f andthe BSs 200/the wireless devices 100 a to 100 f may transmit/receiveradio signals to/from each other through the wirelesscommunication/connections 150 a, 150 b and 150 c. For example, thewireless communication/connections 150 a, 150 b and 150 c maytransmit/receive signals through various physical channels. To this end,at least a part of various configuration information configuringprocesses, various signal processing processes (e.g., channelencoding/decoding, modulation/demodulation, and resourcemapping/de-mapping), and resource allocating processes, fortransmitting/receiving radio signals, may be performed based on thevarious proposals of the present disclosure.

AI refers to the field of studying artificial intelligence or themethodology that can create it, and machine learning refers to the fieldof defining various problems addressed in the field of AI and the fieldof methodology to solve them. Machine learning is also defined as analgorithm that increases the performance of a task through steadyexperience on a task.

Robot means a machine that automatically processes or operates a giventask by its own ability. In particular, robots with the ability torecognize the environment and make self-determination to perform actionscan be called intelligent robots. Robots can be classified asindustrial, medical, home, military, etc., depending on the purpose orarea of use. The robot can perform a variety of physical operations,such as moving the robot joints with actuators or motors. The movablerobot also includes wheels, brakes, propellers, etc., on the drive,allowing it to drive on the ground or fly in the air.

Autonomous driving means a technology that drives on its own, andautonomous vehicles mean vehicles that drive without user’s control orwith minimal user’s control. For example, autonomous driving may includemaintaining lanes in motion, automatically adjusting speed such asadaptive cruise control, automatic driving along a set route, andautomatically setting a route when a destination is set. The vehiclecovers vehicles equipped with internal combustion engines, hybridvehicles equipped with internal combustion engines and electric motors,and electric vehicles equipped with electric motors, and may includetrains, motorcycles, etc., as well as cars. Autonomous vehicles can beseen as robots with autonomous driving functions.

Extended reality is collectively referred to as VR, AR, and MR. VRtechnology provides objects and backgrounds of real world only throughcomputer graphic (CG) images. AR technology provides a virtual CG imageon top of a real object image. MR technology is a CG technology thatcombines and combines virtual objects into the real world. MR technologyis similar to AR technology in that they show real and virtual objectstogether. However, there is a difference in that in AR technology,virtual objects are used as complementary forms to real objects, whilein MR technology, virtual objects and real objects are used as equalpersonalities.

NR supports multiples numerologies (and/or multiple subcarrier spacings(SCS)) to support various 5G services. For example, if SCS is 15 kHz,wide area can be supported in traditional cellular bands, and if SCS is30 kHz/60 kHz, dense-urban, lower latency, and wider carrier bandwidthcan be supported. If SCS is 60 kHz or higher, bandwidths greater than24.25 GHz can be supported to overcome phase noise.

The NR frequency band may be defined as two types of frequency range,i.e., FR1 and FR2. The numerical value of the frequency range may bechanged. For example, the frequency ranges of the two types (FR1 andFR2) may be as shown in Table 1 below. For ease of explanation, in thefrequency ranges used in the NR system, FR1 may mean “sub 6 GHz range”,FR2 may mean “above 6 GHz range,” and may be referred to as millimeterwave (mmW).

TABLE 1 Frequency Range designation Corresponding frequency rangeSubcarrier Spacing FR1 450 MHz - 6000 MHz 15, 30, 60 kHz FR2 24250 MHz -52600 MHz 60, 120, 240 kHz

As mentioned above, the numerical value of the frequency range of the NRsystem may be changed. For example, FR1 may include a frequency band of410 MHz to 7125 MHz as shown in Table 2 below. That is, FR1 may includea frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) or more. Forexample, a frequency band of 6 GHz (or 5850, 5900, 5925 MHz, etc.) ormore included in FR1 may include an unlicensed band. Unlicensed bandsmay be used for a variety of purposes, for example for communication forvehicles (e.g., autonomous driving).

TABLE 2 Frequency Range designation Corresponding frequency rangeSubcarrier Spacing FR1 410 MHz - 7125 MHz 15, 30, 60 kHz FR2 24250 MHz -52600 MHz 60, 120, 240 kHz

Here, the radio communication technologies implemented in the wirelessdevices in the present disclosure may include narrowbandinternet-of-things (NB-IoT) technology for low-power communication aswell as LTE, NR and 6G. For example, NB-IoT technology may be an exampleof low power wide area network (LPWAN) technology, may be implemented inspecifications such as LTE Cat NB1 and/or LTE Cat NB2, and may not belimited to the above-mentioned names. Additionally and/or alternatively,the radio communication technologies implemented in the wireless devicesin the present disclosure may communicate based on LTE-M technology. Forexample, LTE-M technology may be an example of LPWAN technology and becalled by various names such as enhanced machine type communication(eMTC). For example, LTE-M technology may be implemented in at least oneof the various specifications, such as 1) LTE Cat 0, 2) LTE Cat M1, 3)LTE Cat M2, 4) LTE non-bandwidth limited (non-BL), 5) LTE-MTC, 6) LTEMachine Type Communication, and/or 7) LTE M, and may not be limited tothe above-mentioned names. Additionally and/or alternatively, the radiocommunication technologies implemented in the wireless devices in thepresent disclosure may include at least one of ZigBee, Bluetooth, and/orLPWAN which take into account low-power communication, and may not belimited to the above-mentioned names. For example, ZigBee technology maygenerate personal area networks (PANs) associated with small/low-powerdigital communication based on various specifications such as IEEE802.15.4 and may be called various names.

FIG. 2 shows an example of wireless devices to which implementations ofthe present disclosure is applied.

Referring to FIG. 2 , a first wireless device 100 and a second wirelessdevice 200 may transmit/receive radio signals to/from an external devicethrough a variety of RATs (e.g., LTE and NR).

In FIG. 2 , {the first wireless device 100 and the second wirelessdevice 200} may correspond to at least one of {the wireless device 100 ato 100 f and the BS 200}, {the wireless device 100 a to 100 f and thewireless device 100 a to 100f} and/or {the BS 200 and the BS 200} ofFIG. 1 .

The first wireless device 100 may include at least one transceiver, suchas a transceiver 106, at least one processing chip, such as a processingchip 101, and/or one or more antennas 108.

The processing chip 101 may include at least one processor, such aprocessor 102, and at least one memory, such as a memory 104. It isexemplarily shown in FIG. 2 that the memory 104 is included in theprocessing chip 101. Additional and/or alternatively, the memory 104 maybe placed outside of the processing chip 101.

The processor 102 may control the memory 104 and/or the transceiver 106and may be configured to implement the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts describedin the present disclosure. For example, the processor 102 may processinformation within the memory 104 to generate first information/signalsand then transmit radio signals including the first information/signalsthrough the transceiver 106. The processor 102 may receive radio signalsincluding second information/signals through the transceiver 106 andthen store information obtained by processing the secondinformation/signals in the memory 104.

The memory 104 may be operably connectable to the processor 102. Thememory 104 may store various types of information and/or instructions.The memory 104 may store a software code 105 which implementsinstructions that, when executed by the processor 102, perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. For example,the software code 105 may implement instructions that, when executed bythe processor 102, perform the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure. For example, the software code 105 may control theprocessor 102 to perform one or more protocols. For example, thesoftware code 105 may control the processor 102 to perform one or morelayers of the radio interface protocol.

Herein, the processor 102 and the memory 104 may be a part of acommunication modem/circuit/chip designed to implement RAT (e.g., LTE orNR). The transceiver 106 may be connected to the processor 102 andtransmit and/or receive radio signals through one or more antennas 108.Each of the transceiver 106 may include a transmitter and/or a receiver.The transceiver 106 may be interchangeably used with radio frequency(RF) unit(s). In the present disclosure, the first wireless device 100may represent a communication modem/circuit/chip.

The second wireless device 200 may include at least one transceiver,such as a transceiver 206, at least one processing chip, such as aprocessing chip 201, and/or one or more antennas 208.

The processing chip 201 may include at least one processor, such aprocessor 202, and at least one memory, such as a memory 204. It isexemplarily shown in FIG. 2 that the memory 204 is included in theprocessing chip 201. Additional and/or alternatively, the memory 204 maybe placed outside of the processing chip 201.

The processor 202 may control the memory 204 and/or the transceiver 206and may be configured to implement the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts describedin the present disclosure. For example, the processor 202 may processinformation within the memory 204 to generate third information/signalsand then transmit radio signals including the third information/signalsthrough the transceiver 206. The processor 202 may receive radio signalsincluding fourth information/signals through the transceiver 106 andthen store information obtained by processing the fourthinformation/signals in the memory 204.

The memory 204 may be operably connectable to the processor 202. Thememory 204 may store various types of information and/or instructions.The memory 204 may store a software code 205 which implementsinstructions that, when executed by the processor 202, perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. For example,the software code 205 may implement instructions that, when executed bythe processor 202, perform the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure. For example, the software code 205 may control theprocessor 202 to perform one or more protocols. For example, thesoftware code 205 may control the processor 202 to perform one or morelayers of the radio interface protocol.

Herein, the processor 202 and the memory 204 may be a part of acommunication modem/circuit/chip designed to implement RAT (e.g., LTE orNR). The transceiver 206 may be connected to the processor 202 andtransmit and/or receive radio signals through one or more antennas 208.Each of the transceiver 206 may include a transmitter and/or a receiver.The transceiver 206 may be interchangeably used with RF unit. In thepresent disclosure, the second wireless device 200 may represent acommunication modem/circuit/chip.

Hereinafter, hardware elements of the wireless devices 100 and 200 willbe described more specifically. One or more protocol layers may beimplemented by, without being limited to, one or more processors 102 and202. For example, the one or more processors 102 and 202 may implementone or more layers (e.g., functional layers such as physical (PHY)layer, media access control (MAC) layer, radio link control (RLC) layer,packet data convergence protocol (PDCP) layer, radio resource control(RRC) layer, and service data adaptation protocol (SDAP) layer). The oneor more processors 102 and 202 may generate one or more protocol dataunits (PDUs) and/or one or more service data unit (SDUs) according tothe descriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure. The one ormore processors 102 and 202 may generate messages, control information,data, or information according to the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts disclosedin the present disclosure. The one or more processors 102 and 202 maygenerate signals (e.g., baseband signals) including PDUs, SDUs,messages, control information, data, or information according to thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure and providethe generated signals to the one or more transceivers 106 and 206. Theone or more processors 102 and 202 may receive the signals (e.g.,baseband signals) from the one or more transceivers 106 and 206 andacquire the PDUs, SDUs, messages, control information, data, orinformation according to the descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure.

The one or more processors 102 and 202 may be referred to ascontrollers, microcontrollers, microprocessors, or microcomputers. Theone or more processors 102 and 202 may be implemented by hardware,firmware, software, or a combination thereof. As an example, one or moreapplication specific integrated circuits (ASICs), one or more digitalsignal processors (DSPs), one or more digital signal processing devices(DSPDs), one or more programmable logic devices (PLDs), or one or morefield programmable gate arrays (FPGAs) may be included in the one ormore processors 102 and 202. The descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure may be implemented using firmware or software and thefirmware or software may be configured to include the modules,procedures, or functions. Firmware or software configured to perform thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure may beincluded in the one or more processors 102 and 202 or stored in the oneor more memories 104 and 204 so as to be driven by the one or moreprocessors 102 and 202. The descriptions, functions, procedures,suggestions, methods and/or operational flowcharts disclosed in thepresent disclosure may be implemented using firmware or software in theform of code, commands, and/or a set of commands.

The one or more memories 104 and 204 may be connected to the one or moreprocessors 102 and 202 and store various types of data, signals,messages, information, programs, code, instructions, and/or commands.The one or more memories 104 and 204 may be configured by read-onlymemories (ROMs), random access memories (RAMs), electrically erasableprogrammable read-only memories (EPROMs), flash memories, hard drives,registers, cash memories, computer-readable storage media, and/orcombinations thereof. The one or more memories 104 and 204 may belocated at the interior and/or exterior of the one or more processors102 and 202. The one or more memories 104 and 204 may be connected tothe one or more processors 102 and 202 through various technologies suchas wired or wireless connection.

The one or more transceivers 106 and 206 may transmit user data, controlinformation, and/or radio signals/channels, mentioned in thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, to one ormore other devices. The one or more transceivers 106 and 206 may receiveuser data, control information, and/or radio signals/channels, mentionedin the descriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, from one ormore other devices. For example, the one or more transceivers 106 and206 may be connected to the one or more processors 102 and 202 andtransmit and receive radio signals. For example, the one or moreprocessors 102 and 202 may perform control so that the one or moretransceivers 106 and 206 may transmit user data, control information, orradio signals to one or more other devices. The one or more processors102 and 202 may perform control so that the one or more transceivers 106and 206 may receive user data, control information, or radio signalsfrom one or more other devices.

The one or more transceivers 106 and 206 may be connected to the one ormore antennas 108 and 208 and the one or more transceivers 106 and 206may be configured to transmit and receive user data, controlinformation, and/or radio signals/channels, mentioned in thedescriptions, functions, procedures, suggestions, methods and/oroperational flowcharts disclosed in the present disclosure, through theone or more antennas 108 and 208. In the present disclosure, the one ormore antennas 108 and 208 may be a plurality of physical antennas or aplurality of logical antennas (e.g., antenna ports).

The one or more transceivers 106 and 206 may convert received user data,control information, radio signals/channels, etc., from RF band signalsinto baseband signals in order to process received user data, controlinformation, radio signals/channels, etc., using the one or moreprocessors 102 and 202. The one or more transceivers 106 and 206 mayconvert the user data, control information, radio signals/channels,etc., processed using the one or more processors 102 and 202 from thebase band signals into the RF band signals. To this end, the one or moretransceivers 106 and 206 may include (analog) oscillators and/orfilters. For example, the one or more transceivers 106 and 206 canup-convert OFDM baseband signals to OFDM signals by their (analog)oscillators and/or filters under the control of the one or moreprocessors 102 and 202 and transmit the up-converted OFDM signals at thecarrier frequency. The one or more transceivers 106 and 206 may receiveOFDM signals at a carrier frequency and down-convert the OFDM signalsinto OFDM baseband signals by their (analog) oscillators and/or filtersunder the control of the one or more processors 102 and 202.

In the implementations of the present disclosure, a UE may operate as atransmitting device in uplink (UL) and as a receiving device in downlink(DL). In the implementations of the present disclosure, a BS may operateas a receiving device in UL and as a transmitting device in DL.Hereinafter, for convenience of description, it is mainly assumed thatthe first wireless device 100 acts as the UE, and the second wirelessdevice 200 acts as the BS. For example, the processor(s) 102 connectedto, mounted on or launched in the first wireless device 100 may beconfigured to perform the UE behavior according to an implementation ofthe present disclosure or control the transceiver(s) 106 to perform theUE behavior according to an implementation of the present disclosure.The processor(s) 202 connected to, mounted on or launched in the secondwireless device 200 may be configured to perform the BS behavioraccording to an implementation of the present disclosure or control thetransceiver(s) 206 to perform the BS behavior according to animplementation of the present disclosure.

In the present disclosure, a BS is also referred to as a node B (NB), aneNode B (eNB), or a gNB.

FIG. 3 shows an example of a wireless device to which implementations ofthe present disclosure is applied.

The wireless device may be implemented in various forms according to ause-case/service (refer to FIG. 1 ).

Referring to FIG. 3 , wireless devices 100 and 200 may correspond to thewireless devices 100 and 200 of FIG. 2 and may be configured by variouselements, components, units/portions, and/or modules. For example, eachof the wireless devices 100 and 200 may include a communication unit110, a control unit 120, a memory unit 130, and additional components140. The communication unit 110 may include a communication circuit 112and transceiver(s) 114. For example, the communication circuit 112 mayinclude the one or more processors 102 and 202 of FIG. 2 and/or the oneor more memories 104 and 204 of FIG. 2 . For example, the transceiver(s)114 may include the one or more transceivers 106 and 206 of FIG. 2and/or the one or more antennas 108 and 208 of FIG. 2 . The control unit120 is electrically connected to the communication unit 110, the memoryunit 130, and the additional components 140 and controls overalloperation of each of the wireless devices 100 and 200. For example, thecontrol unit 120 may control an electric/mechanical operation of each ofthe wireless devices 100 and 200 based onprograms/code/commands/information stored in the memory unit 130. Thecontrol unit 120 may transmit the information stored in the memory unit130 to the exterior (e.g., other communication devices) via thecommunication unit 110 through a wireless/wired interface or store, inthe memory unit 130, information received through the wireless/wiredinterface from the exterior (e.g., other communication devices) via thecommunication unit 110.

The additional components 140 may be variously configured according totypes of the wireless devices 100 and 200. For example, the additionalcomponents 140 may include at least one of a power unit/battery,input/output (I/O) unit (e.g., audio I/O port, video I/O port), adriving unit, and a computing unit. The wireless devices 100 and 200 maybe implemented in the form of, without being limited to, the robot (100a of FIG. 1 ), the vehicles (100 b-1 and 100 b-2 of FIG. 1 ), the XRdevice (100 c of FIG. 1 ), the hand-held device (100 d of FIG. 1 ), thehome appliance (100 e of FIG. 1 ), the IoT device (100 f of FIG. 1 ), adigital broadcast terminal, a hologram device, a public safety device,an MTC device, a medicine device, a FinTech device (or a financedevice), a security device, a climate/environment device, the AIserver/device (400 of FIG. 1 ), the BSs (200 of FIG. 1 ), a networknode, etc. The wireless devices 100 and 200 may be used in a mobile orfixed place according to a use-example/service.

In FIG. 3 , the entirety of the various elements, components,units/portions, and/or modules in the wireless devices 100 and 200 maybe connected to each other through a wired interface or at least a partthereof may be wirelessly connected through the communication unit 110.For example, in each of the wireless devices 100 and 200, the controlunit 120 and the communication unit 110 may be connected by wire and thecontrol unit 120 and first units (e.g., 130 and 140) may be wirelesslyconnected through the communication unit 110. Each element, component,unit/portion, and/or module within the wireless devices 100 and 200 mayfurther include one or more elements. For example, the control unit 120may be configured by a set of one or more processors. As an example, thecontrol unit 120 may be configured by a set of a communication controlprocessor, an application processor (AP), an electronic control unit(ECU), a graphical processing unit, and a memory control processor. Asanother example, the memory unit 130 may be configured by a RAM, a DRAM,a ROM, a flash memory, a volatile memory, a non-volatile memory, and/ora combination thereof.

FIG. 4 shows an example of UE to which implementations of the presentdisclosure is applied.

Referring to FIG. 4 , a UE 100 may correspond to the first wirelessdevice 100 of FIG. 2 and/or the wireless device 100 or 200 of FIG. 3 .

A UE 100 includes a processor 102, a memory 104, a transceiver 106, oneor more antennas 108, a power management module 110, a battery 112, adisplay 114, a keypad 116, a subscriber identification module (SIM) card118, a speaker 120, and a microphone 122.

The processor 102 may be configured to implement the descriptions,functions, procedures, suggestions, methods and/or operationalflowcharts disclosed in the present disclosure. The processor 102 may beconfigured to control one or more other components of the UE 100 toimplement the descriptions, functions, procedures, suggestions, methodsand/or operational flowcharts disclosed in the present disclosure.Layers of the radio interface protocol may be implemented in theprocessor 102. The processor 102 may include ASIC, other chipset, logiccircuit and/or data processing device. The processor 102 may be anapplication processor. The processor 102 may include at least one of adigital signal processor (DSP), a central processing unit (CPU), agraphics processing unit (GPU), a modem (modulator and demodulator). Anexample of the processor 102 may be found in SNAPDRAGON™ series ofprocessors made by Qualcomm®, EXYNOS™ series of processors made bySamsung®, a series of processors made by Apple®, HELIO™ series ofprocessors made by MediaTek®, ATOM™ series of processors made by Intel®or a corresponding next generation processor.

The memory 104 is operatively coupled with the processor 102 and storesa variety of information to operate the processor 102. The memory 104may include ROM, RAM, flash memory, memory card, storage medium and/orother storage device. When the embodiments are implemented in software,the techniques described herein can be implemented with modules (e.g.,procedures, functions, etc.) that perform the descriptions, functions,procedures, suggestions, methods and/or operational flowcharts disclosedin the present disclosure. The modules can be stored in the memory 104and executed by the processor 102. The memory 104 can be implementedwithin the processor 102 or external to the processor 102 in which casethose can be communicatively coupled to the processor 102 via variousmeans as is known in the art.

The transceiver 106 is operatively coupled with the processor 102, andtransmits and/or receives a radio signal. The transceiver 106 includes atransmitter and a receiver. The transceiver 106 may include basebandcircuitry to process radio frequency signals. The transceiver 106controls the one or more antennas 108 to transmit and/or receive a radiosignal.

The power management module 110 manages power for the processor 102and/or the transceiver 106. The battery 112 supplies power to the powermanagement module 110.

The display 114 outputs results processed by the processor 102. Thekeypad 116 receives inputs to be used by the processor 102. The keypad116 may be shown on the display 114.

The SIM card 118 is an integrated circuit that is intended to securelystore the international mobile subscriber identity (IMSI) number and itsrelated key, which are used to identify and authenticate subscribers onmobile telephony devices (such as mobile phones and computers). It isalso possible to store contact information on many SIM cards.

The speaker 120 outputs sound-related results processed by the processor102. The microphone 122 receives sound-related inputs to be used by theprocessor 102.

FIG. 5 is a wireless communication system.

As can be seen with reference to FIG. 5 , the wireless communicationsystem includes at least one base station (BS). The BS is divided into agNodeB (or gNB) 20 a and an eNodeB (or eNB) 20 b. The gNB 20 a supports5G mobile communication. The eNB 20 b supports 4G mobile communication,that is, long term evolution (LTE).

Each base station 20 a and 20 b provides a communication service for aspecific geographic area (commonly referred to as a cell) (20-1, 20-2,20-3). A cell may in turn be divided into a plurality of regions(referred to as sectors).

A UE typically belongs to one cell, and the cell to which the UE belongsis called a serving cell. A base station that provides a communicationservice for a serving cell is called a serving BS. Since the wirelesscommunication system is a cellular system, other cells adjacent to theserving cell exist. Other cell adjacent to the serving cell is referredto as a neighbor cell (or neighboring cell). A base station thatprovides a communication service to a neighboring cell is referred to asa neighbor BS. The serving cell and the neighboring cell are relativelydetermined based on the UE.

Hereinafter, downlink means communication from the base station 20 tothe UE 10, and uplink means communication from the UE 10 to the basestation 20. In the downlink, the transmitter may be a part of the basestation 20, and the receiver may be a part of the UE 10. In the uplink,the transmitter may be a part of the UE 10, and the receiver may be apart of the base station 20.

Meanwhile, a wireless communication system may be largely divided into afrequency division duplex (FDD) scheme and a time division duplex (TDD)scheme. According to the FDD scheme, uplink transmission and downlinktransmission are performed while occupying different frequency bands.According to the TDD scheme, uplink transmission and downlinktransmission are performed at different times while occupying the samefrequency band. The channel response of the TDD scheme is substantiallyreciprocal. This means that the downlink channel response and the uplinkchannel response are almost the same in a given frequency domain.Accordingly, in the TDD-based wireless communication system, there is anadvantage that the downlink channel response can be obtained from theuplink channel response. In the TDD scheme, since uplink transmissionand downlink transmission are time-divided in the entire frequency band,downlink transmission by the base station and uplink transmission by theUE cannot be simultaneously performed. In a TDD system in which uplinktransmission and downlink transmission are divided in subframe units,uplink transmission and downlink transmission are performed in differentsubframes.

Operating Band in NR

The operating bands in NR are as follows.

The operating band of Table 3 below is an operating band converted fromthe operating band of LTE/LTE-A. This is called the FR1 band.

TABLE 3 NR operating band UL operating band DL operating band DuplexMode F_(UL_low) - F_(UL_high) F_(DL_low) - F_(DL_high) n1 1920 MHz -1980 MHz 2110 MHz - 2170 MHz FDD n2 1850 MHz - 1910 MHz 1930 MHz - 1990MHz FDD n3 1710 MHz - 1785 MHz 1805 MHz - 1880 MHz FDD n5 824 MHz - 849MHz 869 MHz - 894 MHz FDD n7 2500 MHz - 2570 MHz 2620 MHz - 2690 MHz FDDn8 880 MHz - 915 MHz 925 MHz - 960 MHz FDD n12 699 MHz - 716 MHz 729MHz - 746 MHz FDD n20 832 MHz - 862 MHz 791 MHz - 821 MHz FDD n25 1850MHz - 1915 MHz 1930 MHz - 1995 MHz FDD n28 703 MHz - 748 MHz 758 MHz -803 MHz FDD n34 2010 MHz - 2025 MHz 2010 MHz - 2025 MHz TDD n38 2570MHz - 2620 MHz 2570 MHz - 2620 MHz TDD n39 1880 MHz - 1920 MHz 1880MHz - 1920 MHz TDD n40 2300 MHz - 2400 MHz 2300 MHz - 2400 MHz TDD n412496 MHz - 2690 MHz 2496 MHz - 2690 MHz TDD n50 1432 MHz - 1517 MHz 1432MHz - 1517 MHz TDD1 n51 1427 MHz - 1432 MHz 1427 MHz - 1432 MHz TDD n661710 MHz - 1780 MHz 2110 MHz - 2200 MHz FDD n70 1695 MHz - 1710 MHz 1995MHz - 2020 MHz FDD n71 663 MHz - 698 MHz 617 MHz - 652 MHz FDD n74 1427MHz - 1470 MHz 1475 MHz - 1518 MHz FDD n75 N/A 1432 MHz - 1517 MHz SDLn76 N/A 1427 MHz - 1432 MHz SDL n77 3300 MHz - 4200 MHz 3300 MHz - 4200MHz TDD n78 3300 MHz - 3800 MHz 3300 MHz - 3800 MHz TDD n79 4400 MHz -5000 MHz 4400 MHz - 5000 MHz TDD n80 1710 MHz - 1785 MHz N/A SUL n81 880MHz - 915 MHz N/A SUL n82 832 MHz - 862 MHz N/A SUL n83 703 MHz - 748MHz N/A SUL n84 1920 MHz - 1980 MHz N/A SUL n86 1710 MHz - 1780 MHz N/ASUL

The table below shows the NR operating bands defined on the highfrequency phase. This is called the FR2 band.

TABLE 4 NR operating band UL operating band DL operating band Duple xMode F_(UL_low) - F_(UL_high) F_(DL_low) - F_(DL_high) n257 26500 MHz -29500 MHz 26500 MHz - 29500 MHz TDD n258 24250 MHz - 27500 MHz 24250MHz - 27500 MHz TDD n259 37000 MHz - 40000 MHz 37000 MHz - 40000 MHz TDDn260 37000 MHz - 40000 MHz 37000 MHz - 40000 MHz FDD n261 27500 MHz -28350 MHz 27500 MHz - 28350 MHz FDD

Disclosures of the Present Specification

This specification proposes a transmit power requirement of an NRhandheld UE operating in FR2-2 (frequency range: 52600 MHz - 71000 MHz),which is currently being discussed in the 3GPP Rel-17 standard.

Currently, the frequency range is defined as follows.

TABLE 5 Frequency range designation Corresponding frequency range FR1410 MHz - 7125 MHz FR2 FR2-1 24250 MHz - 52600 MHz FR2-2 52600 MHz -71000 MHz

In FR2-2, handheld UE, vehicular UE, FWA, etc. will be used, and RFstandards for this are being discussed. RF standards are generallyclearly defined in band numbers defined in Frequency Range (FR). InFR2-2, to date, n263 has been defined.

Table 6 shows the operating bands of NR in FR2.

TABLE 6 NR operating band Uplink (UL) and Downlink (DL) operating bandDuplex mode BS transmit/receive UE transmit/receive F_(UL_low) -F_(UL_high) F_(DL_low) - F_(DL_high) n257 26500 MHz - 29500 MHz TDD n25824250 MHz - 27500 MHz TDD n259 39500 MHz - 43500 MHz TDD n260 37000MHz - 40000 MHz TDD n261 27500 MHz - 28350 MHz TDD n262 47200 MHz -48200 MHz TDD n263 (Note) 57000 MHz - 71000 MHz TDD NOTE: This band isrestricted to operation with shared spectrum channel access

The operating band may mean an operating band. The operating band maymean a frequency band in which communication may be performed.

F_(UL_low) may mean the smallest frequency that can be used for theuplink operating band in each operating band, and F_(UL_high) may meanthe largest frequency that can be used for the uplink operating band ineach operating band. F_(DL_loW) may mean the smallest frequency that canbe used for the downlink operating band in each operating band, andF_(DL_high) may mean the largest frequency that can be used for thedownlink operating band in each operating band.

Referring to Table 6, FR2-2 may be n263. FR2-2 to be described later maymean the n263 band.

The followings were agreed for FR2-2.

i) Handheld UE antenna array number of elements assumption:

-   Commercial FR2-1 antenna module physical dimension can be treated as    the feasible FR2-2 antenna module dimension.-   Commercial FR2-1 antenna module is equipped with 1×4 or 2×2 antenna    elements.

ii) Vehicular UE antenna array assumption

-   Vehicular array size may be equal to or larger than the handheld.

iii) FWA UE antenna array assumption

-   If a single power class is defined for FWA in Rel-17, the number of    antenna element assumption is anywhere in the range between 32 and    64 elements.

Tables 7 and 8 summarize the UE minimum peak EIRP and the sphericalcoverage’s EIRP which correspond to power class 1, 2, 3, 4 and 5 inFR2-1.

Table 7 shows the UE minimum peak EIRP (Effective Isotropic RadiatedPower) for power classes 1, 2, 3, 4, and 5 in FR2-1.

TABLE 7 Operating band Frequency Min peak EIRP (dBm) PC1 PC2 PC3 PC4 PC5n257 28 GHz (26500 MHz - 29500 MHz) 40.0 29 22.4 34 30 n258 24 GHz(24250 MHz - 27500 MHz) 40.0 29 22.4 34 30.4 n259 39 GHz (39500 MHz -43500 MHz) 18.7 27.7 n260 39 GHz (37000 MHz - 40000 MHz) 38.0 20.6 31n261 28 GHz (27500 MHz - 28350 MHz) 40.0 29 22.4 34 n262 47 GHz (47200MHz - 48200 MHz) 34.2 22.9 16.0 28.3

Table 8 shows UE spherical coverage for Power Class 1,2,3,4 and 5 inFR2-1.

TABLE 8 Operating band Min EIRP at X %-tile CDF (dBm) PC1 PC2 PC3 PC4PC5 X = 85 X = 60 X = 50 X = 20 X = 85 n257 32.0 18.0 11.5 25 22 n25832.0 18.0 11.5 25 22.4 n259 5.8 19.7 n260 30.0 8 19 n261 32.0 18.0 11.525 n262 26.0 11.0 2.9 16.2

Table 9 shows the difference between the minimum peak EIRP and sphericalcoverage’s EIRP which correspond to each X%-tile for power class.

TABLE 9 Operating band Difference between minimum peak EIRP and EIRP atX%-tile CDF (dB) PC1 PC2 PC3 PC4 PC5 X = 85 X = 60 X = 50 X = 20 X = 85n257 8.0 11.0 10.9 9.0 8.0 n258 8.0 11.0 10.9 9.0 8.0 n259 12.9 8.0 n2608.0 12.9 12.0 n261 8.0 11.0 10.9 9.0 n262 8.2 11.9 13.1 12.1

Here, the UE type was assumed for PC1~PC5 in FR2-1 as seen Table 10.

TABLE 10 UE Power class UE type 1 Fixed wireless access (FWA) UE 2Vehicular UE 3 Handheld UE 4 High power non-handheld UE 5 Fixed wirelessaccess (FWA) UE

This specification proposes the requirements of a handheld UE. Ahandheld UE in the present specification may correspond to a power class3 UE.

That is, requirements of the power class 3 UE may be proposed in thisspecification.

FIG. 6 shows an array antenna module type in FR2-2.

For handheld UE, based on the agreement in WF, 8(8Tx : 1x8) and16(16Tx:2x8, 4x4) are investigated for number of antenna elements asseen in FIG. 6 .

FIG. 7 shows an array antenna module of 1x8 in FR2-2.

1 panel and 2 panels are shown in FIG. 7 .

Handheld UE should be able to transmit the minimum maximum transmissionpower for communication guarantee (minimum peak EIRP standard), andshould satisfy the EIRP corresponding to X%-tile based on the CDFstandard of EIRP measured in the entire space (ERIP @ X%-tile CDF(Spherical Coverage), X = 50).

This specification proposes the minimum peak EIRP and Spherical coveragestandards for communication of handheld UE in FR2-2.

Case 1. Minimum Peak EIRP

Table 11 shows the minimum peak EIRP for handheld UE in FR2-2.

TABLE 11 Parameter Unit Value # of panel ½ 1 Antenna element number perpolarization 8 16 Avg. element gain per polarization dBi 4.6 4.6 Antennaroll-off loss vs frequency dB 2.5 2.5 Polarization gain dB 2.5 2.5 Arraygain dB 9.03 12.04 Total realized antenna gain dBi 13.6 16.6 P1dB per PAdBm 8.5 8.5 Back-off from P1dB dB 6.5 8.5 Pout (per element) dBm 2 0Array gain dB 9.03 12.04 Total conducted Power (per polar) dBm 11.0312.04 Total IM Loss (worst) dB 10 12 Minimum Peak EIRP dBm 14.7 16.7

As shown in Table 11, a minimum peak EIRP of 18.6 dBm for 8Tx and 22.7dBm for 16Tx may be analyzed. Here, ‘Antenna roll-off loss vs frequencymay be assumed to be -2.5 dB considering the wide frequency range of57000 MHz to 71000 MHz of n263.

The minimum peak EIRP of 32Tx may be about 3 dB larger than that of16Tx. This may be due to the higher temperature of 32Tx.

Pout is the power considering backoff from P1dB per PA of the poweramplifier (PA). The backoff is to satisfy the RF standards ACLR, SEM,EVM, etc. In Table 11, Pout was assumed as follows.

-   -2 dBm for 8 antenna elements,-   -0 dBm for 16 antenna elements,

When the number of antennas increases, the number of PAs also increases,and heat generation increases due to an increase in the number of RFdevices. The above values may be assumed in consideration of the linearcharacteristic deterioration of PA due to heat generation.

Total IM (implementation) loss includes mismatch and transmission lineloss, beam forming loss and form-factor integration loss. Total IM Lossaccording to the number of antennas was assumed as follows.

-   10 dB for 8 antenna elements,-   12 dB for 16 antenna elements,

Pout and Total IM loss may vary depending on the actual implementationmethod. Therefore, the Minimum Peak EIRP considering the additionalimplementation margin delta may be as follows.

-   i) In case of 8 antenna elements    -   Minimum Peak EIRP = Total realized antenna gain + Pout + Array        gain - Total IM loss + delta    -    = 13.6 + Pout + 9 − 10 + delta    -    = 12.6 + Pout + delta-   ii) In case of 16 antenna elements    -   Minimum Peak EIRP = Total realized antenna gain + Pout + Array        gain - Total IM loss + delta    -    = 16.64 + Pout + 12.04 − 12 + delta    -    = 16.7 + Pout + delta    -   where Pout = -3, -2.9, ... , -0.1, 0, 0.1, 0.2, ... , 10.0 dBm,        and considering that the temperature increases as the number of        antennas increases and PA linearity deteriorates, the followings        may be applied.

-   -Pout (8 antenna elements) ≥ Pout (16 antenna elements)

That is, each Pout at 8 antennas may be greater than or equal to eachPout at 16 antennas.

Considering the implementation, the delta may be +/- 0.1, +/-0.2 ...+/-6.0 dB.

In case of handheld UE, Pout by form-factor may be -3 dBm. In this case,the minimum peak EIRP may be value in Table 12.

TABLE 12 Parameter Unit Value # of panel ½ 1 Antenna element number perpolarization 8 16 Avg. element gain per polarization dBi 4.6 4.6 Antennaroll-off loss vs frequency dB 2.5 2.5 Polarization gain dB 2.5 2.5 Arraygain dB 9.03 12.04 Total realized antenna gain dBi 13.6 16.6 P1dB per PAdBm 8.5 8.5 Back-off from P1dB dB -11.5 -11.5 Pout (per element) dBm -3-3 Array gain dB 9.03 12.04 Total conducted Power (per polar) dBm 6.039.04 Total IM Loss (worst) dB 10 12 Minimum Peak EIRP dBm 9.7 13.7

The Minimum Peak EIRP of FR2-2 handheld UE may be proposed as follows.

Minimum Peak EIRP = Total realized antenna gain + Pout + Array gain -Total implementation loss + delta

-   Total realized antenna gain = 13.6 dBi(8Tx), 16.6 dBi(16Tx)-   Pout = -3, -2.9, ... , -0.1, 0, 0.1, 0.2, ... , 10.0 dBm-   Pout (8 antenna elements) ≥ Pout (16 antenna elements)-   Array gain = 10*log10 (Antenna element number per polarization)-   Total implementation loss = 10(8Tx), 12(16Tx)-   - delta = +/-0.1, +/-0.2 ... +/-6.0 dB

Minimum peak EIRP may be ‘13.6+(-3)+9.0-10+delta=9.6+delta’.

When the delta value is -3, the Minimum Peak EIRP may be 7.6 dBm.

Case 2. Spherical Coverage

8Tx may have 1 panel with 1×8 or 2 panels with 1×8.

16Tx may have 1 panel with 2×8 or 1 panel with 4×4.

(1) 8Tx

FIG. 8 shows spherical coverage of 1 panel and 2 panels for handheld UEwith 8 antenna elements in FR2-2.

FIG. 8 shows the CDF of spherical coverage for 8Tx based on the totalantenna gain. From it, the difference between minimum peak EIRP and EIRPat 50%-tile CDF may be 9.8 dB and 4.8 dB for 1 panel and 2 panelsrespectively. The difference between 1 panel and 2 panels may be 5 dB.

For a 50%-tile CDF with 8 antenna elements per panel, the EIRP may be:

-   1 panel: EIRP at 50%-tile CDF = minimum peak EIRP - 9.8 dB-   2 panels: EIRP at 50%-tile CDF = minimum peak EIRP - 4.8 dB

Here, the minimum peak EIRP may be the minimum peak EIRP value in Case1.

The difference value in FIG. 8 is a simulation-based analysis, and it isnecessary to consider the implementation margin. Considering the 11~13dB difference of FR2-1, the difference value may be as follows byapplying about 4 dB margin based on 1 panel.

-   1 panel: EIRP at 50%-tile CDF = Minimum peak EIRP -14 dB-   2 panels: EIRP at 50%-tile CDF = Minimum peak EIRP-9 dB

If the additional margin M is additionally considered, the differencevalue may be as follows.

-   1 panel: EIRP at 50%-tile CDF = Minimum peak EIRP -14 dB -M-   2 panels: EIRP at 50%-tile CDF = Minimum peak EIRP-9 dB -M

The M may be +/-0.1, +/-0.2, ... , +/-4.0 dB.

As an example, in case of M = 0 and minimum peak EIRP = 14.7 dBm (e.g.,Table 11) for 8 antenna elements, EIRP at 50%-tile CDF may be asfollows.

-   1 panel: EIRP at 50%-tile CDF = 0.7 dBm-   2 panels: EIRP at 50%-tile CDF = 5.7 dBm

As an example, in case of M = 0 and minimum peak EIRP = 9.7 dBm (e.g.,Table 12) for 8 antenna elements, EIRP at 50%-tile CDF may be asfollows.

-   1 panel: EIRP at 50%-tile CDF = -4.3 dBm-   2 panels: EIRP at 50%-tile CDF = 0.7 dBm

When M is -1.6 and minimum peak EIRP is 9.7 dBm (eg, Table 12) for 8antenna elements, EIRP at 50%-tile CDF may be 2.3 dBm in 2 panels.

(2) 16Tx

FIG. 9 shows Spherical Coverage of 2 panel based on full sphere forhandheld UE with 16 antenna elements in FR2-2.

FIG. 9 shows the CDF of spherical coverage based on the whole sphere fortwo panels (back-to-back) using 16Tx based on the total antenna gain.

Since it is an analysis based on actual measurements, it may be adifference value that does not consider additional implementationmargins first. Comparing with the 11~13 dB difference value of FR2-1, asimilar difference value is observed in the case of 8x2. In the case of4x4, about 4 dB is observed well. The difference value may be asfollows.

-   2 panels (8x2): 11.5 dB-   2 panels (4x4): 7.5 dB

Considering this, if there are 16 antennas per panel, the EIRP at50%-tile CDF may be as follows.

-   2 panels (8x2): EIRP at 50%-tile CDF = Minimum peak EIRP -11.5 dB-   2 panels (4x4): EIRP at 50%-tile CDF = Minimum peak EIRP -7.5 dB

Here, the minimum peak EIRP may be the corresponding minimum peak EIRPvalue in Case 1.

Considering additional implementation margin, M, EIRP at 50%-tile CDFmay be as follows.

-   2 panels (8x2): EIRP at 50%-tile CDF = Minimum peak EIRP -11.5 dB -    M-   2 panels (4x4): EIRP at 50%-tile CDF = Minimum peak EIRP -7.5 dB - M

Here, the M may be +/-0.1, +/-0.2, ... , +/-4.0 dB.

For example, in case of M = 0 and minimum peak EIRP = 16.7 dBm (Table11) for 16 antenna elements, EIRP at 50%-tile CDF may be as follows.

-   2 panels (8x2): EIRP at 50%-tile CDF = 5.2 dB-   2 panels (4x4): EIRP at 50%-tile CDF = 9.2 dB

For example, in case of M = 0 and minimum peak EIRP = 13.7 dBm (Table12) for 16 antenna elements, EIRP at 50%-tile CDF may be as follows.

-   2 panels (8x2): EIRP at 50%-tile CDF = 2.2 dB-   2 panels (4x4): EIRP at 50%-tile CDF = 6.2 dB

Table 13 shows the difference between the minimum peak EIRP and EIRP inthe 50%-tile CDF based on the entire sphere of 8Tx and 16Tx.

TABLE 13 Operating band Difference between minimum peak EIRP and EIRP at50%-tile CDF (dBm) PC3 1×8 2×8 4×4 1 panel 2 panels 1 panel 2 panels 1panel 2 panels n257 10.9 n258 10.9 n259 12.9 n260 12.9 n261 10.9 n26213.1 n263 14+M 9+M 11.5+M 7.5+M

Because 8×2 modules utilize greater separation between patches comparedto modules in 4×4, 8×2 modules may increase directivity and reducecoverage. For this reason, differences between 8×2 and 4×4 may occur.

It is proposed to define the EIRP at 50%-tile CDF of the FR2-2 handheldUE by subtracting the difference shown in Table 13 from the minimum peakEIRP of Case 1.

-   EIRP at 50%-tile CDF = Minimum peak EIRP (Case 1) - difference (for    n263 in Table 13)

For example, in the case of 8 antenna elements and 2 panels

-   EIRP at 50%-tile CDF = Minimum peak EIRP (Case 1) - 9 dB

For example, in the case of 16 antenna elements and 2 panels,considering the 2×8 showing the large difference between 2×8 and 4×4 forthe minimum requirement,

-   EIRP at 50%-tile CDF = Minimum peak EIRP (Case 1) - 11.5 dB

may be suggested.

This specification proposes the minimum peak EIRP and spherical coveragestandard based on the array antenna type of the FR2-2 handheld UE. InCase 1, the Minimum peak EIRP is proposed, and in Case 2, sphericalcoverage is proposed.

When the number of antennas of the handheld UE increases, the minimumpeak EIRP may increase, but a heat problem may occur, so it is necessaryto implement an appropriate number of antennas.

In the case of two panels, the spherical coverage may be better thanthat of one panel.

As an example, in the case of Pout > 0 dBm in FR2-2 handheld UE, it maybe proposed to set minimum peak EIRP and spherical coverage standardsassuming 8 antenna elements and 2 panels (8 antenna elements per panel).

Or, as an example, in the case of Pout ≤ 0 dBm in FR2-2 handheld UE, itmay be proposed to set the minimum peak EIRP and spherical coveragestandards assuming 16 antenna elements and 2 panels (16 antenna elementsper panel).

A general handheld-network operation for this may be as follows.

-   The UE may inform the network that it is an FR2-2 handheld UE.-   The terminal may satisfy the FR2-2 handheld UE Tx RF requirement.-   The network may set parameters so that the FR2-2 handheld UE can    operate normally.-   The UE may perform communication and mobility-related measurement    with the network based on the set parameters.

FIG. 10 illustrates a procedure of a UE according to the disclosure ofthe present specification.

-   1. The UE may determine transmission power;-   2. The UE transmits uplink signal via n263 frequency band, based on    the transmission power,

The UE may be power class 3 UE,

The transmission power may be determined based on i) minimum peak EIRP(Effective Isotropic Radiated Power) of the UE and ii) EIRP related tospherical coverage.

The minimum peak EIRP may be 7.6 dBm.

The EIRP related to spherical coverage may be EIRP at 50 percentile ofthe distribution of radiated power measured over the full sphere aroundthe UE.

The EIRP related to spherical coverage may be 2.3 dBm.

The UE may include 8 antennas.

The n263 frequency band may be a frequency band between 57000 MHz and71000 MHz.

Hereinafter, a processor for performing communication in a wirelesscommunication system according to some embodiments of the presentspecification will be described.

The processor determines transmission power; An uplink signal istransmitted via the n263 frequency band based on the transmission power,the UE is a power class 3 UE, and the transmission power may bedetermined based on the minimum peak Effective Isotropic Radiated Power(EIRP) of the UE and EIRP related to the spherical coverage of the UE.

Hereinafter, a non-volatile computer-readable medium storing one or moreinstructions for providing a multicast service in a wirelesscommunication system according to some embodiments of the presentspecification will be described.

According to some embodiments of the present disclosure, the technicalfeatures of the present disclosure may be directly implemented ashardware, software executed by a processor, or a combination of the two.For example, in wireless communication, a method performed by a wirelessdevice may be implemented in hardware, software, firmware, or anycombination thereof. For example, the software may reside in RAM memory,flash memory, ROM memory, EPROM memory, EEPROM memory, registers, harddisk, removable disk, CD-ROM, or other storage medium.

Some examples of a storage medium are coupled to the processor such thatthe processor can read information from the storage medium.Alternatively, the storage medium may be integrated into the processor.The processor and storage medium may reside in the ASIC. For anotherexample, a processor and a storage medium may reside as separatecomponents.

Computer-readable media can include tangible and non-volatilecomputer-readable storage media.

For example, non-volatile computer-readable media may include randomaccess memory (RAM), such as synchronization dynamic random accessmemory (SDRAM), read-only memory (ROM), or non-volatile random accessmemory (NVRAM). Read-only memory (EEPROM), flash memory, magnetic oroptical data storage media, or other media that can be used to storeinstructions or data structures or Non-volatile computer readable mediamay also include combinations of the above.

Further, the methods described herein may be realized at least in partby computer-readable communication media that carry or carry code in theform of instructions or data structures and that can be accessed, read,and/or executed by a computer.

According to some embodiments of the present disclosure, anon-transitory computer-readable medium has one or more instructionsstored thereon. The stored one or more instructions may be executed by aprocessor of the base station.

The stored one or more instructions cause the processors to determinetransmission power; An uplink signal is transmitted via the n263frequency band based on the transmission power, the UE is a power class3 UE, and the transmission power is determined based on the minimum peakEffective Isotropic Radiated Power (EIRP) of the UE and EIRP related tothe spherical coverage of the UE.

The present specification may have various effects.

For example, by proposing a standard specification for a handheld UEsupporting the n263 band, communication between the network and the UEcan be guaranteed and commercialized.

Effects that can be obtained through specific examples of the presentspecification are not limited to the effects listed above. For example,various technical effects that a person having ordinary skill in therelated art can understand or derive from this specification may exist.Accordingly, the specific effects of the present specification are notlimited to those explicitly described herein, and may include variouseffects that can be understood or derived from the technicalcharacteristics of the present specification.

The claims described herein may be combined in various ways. Forexample, the technical features of the method claims of the presentspecification may be combined and implemented as an apparatus, and thetechnical features of the apparatus claims of the present specificationmay be combined and implemented as a method. In addition, the technicalfeatures of the method claim of the present specification and thetechnical features of the apparatus claim may be combined to beimplemented as an apparatus, and the technical features of the methodclaim of the present specification and the technical features of theapparatus claim may be combined and implemented as a method. Otherimplementations are within the scope of the following claims.

What is claimed is:
 1. A UE (User Equipment) to perform communication,comprising: a transceiver; and a processor, wherein the processordetermines transmission power; wherein the transceiver transmits uplinksignal via n263 frequency band, based on the transmission power, whereinthe UE is power class 3 UE, wherein the transmission power is determinedbased on i) minimum peak EIRP (Effective Isotropic Radiated Power) ofthe UE and ii) EIRP related to spherical coverage.
 2. The UE of claim 1,wherein the minimum peak EIRP is 7.6 dBm.
 3. The UE of claim 1, whereinthe EIRP related to spherical coverage is EIRP at 50 percentile of thedistribution of radiated power measured over the full sphere around theUE, wherein the EIRP related to spherical coverage is 2.3 dBm.
 4. The UEof claim 1, wherein the UE includes 8 antennas.
 5. The UE of claim 1,wherein the n263 frequency band is a frequency band between 57000 MHzand 71000 MHz.
 6. A method for performing communication, performed by aUE (User Equipment), comprising: determining transmission power;transmitting uplink signal via n263 frequency band, based on thetransmission power, wherein the UE is power class 3 UE, wherein thetransmission power is determined based on i) minimum peak EIRP(Effective Isotropic Radiated Power) of the UE and ii) EIRP related tospherical coverage.
 7. The method of claim 6, wherein the minimum peakEIRP is 7.6 dBm.
 8. The method of claim 6, wherein the EIRP related tospherical coverage is EIRP at 50 percentile of the distribution ofradiated power measured over the full sphere around the UE, wherein theEIRP related to spherical coverage is 2.3 dBm.
 9. The method of claim 6,wherein the UE includes 8 antennas.
 10. The method of claim 6, whereinthe n263 frequency band is a frequency band between 57000 MHz and 71000MHz.
 11. An apparatus in mobile communication, the apparatus comprising:at least one processor; and at least one memory storing instructions andoperably electrically connectable with the at least one processor;wherein, based on the instructions performed by the at least oneprocessor, operation includes: determining transmission power;transmitting uplink signal via n263 frequency band, based on thetransmission power, wherein the UE is power class 3 UE, wherein thetransmission power is determined based on i) minimum peak EIRP(Effective Isotropic Radiated Power) of the UE and ii) EIRP related tospherical coverage.